package com.interface04;

/**
 * @ClassName NoteBook
 * @Description TODO
 * @Author hp
 * @Date 2021/6/16 16:20
 * @Version 1.0
 **/
public class NoteBook {
    public void use(Usb usb){
        usb.powerOn();
        usb.powerOff();
    }
}
